(en) « Oldest Consul Is Dead : Horatio J. Sprague Had Represented This Country at Gibraltar Since 1848 », The New York Times, (lire en ligne)
(en) William Adams Richardson, « A Mystery of the Sea : Fate of the Captain, his Wife, the Mate and Crew of the Mary Celeste », The New York Times, (lire en ligne)
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(en) « Mysterious Occurrence at Sea », The Manchester Guardian, , p. 6 (lire en ligne)